Hitting the links and attending sporting events was apparently much more important to Bode Miller than the baby in his ex-girlfriend’s belly, baby-mama Sara McKenna said.

“He told me to have an abortion, that he was too busy going to hockey games and playing golf,” she said yesterday.

And when McKenna, 27, refused an abortion, the Olympic gold-medal skiier was too busy, she said.

“He went golfing instead of going to my ultrasound.”

A day after a Manhattan Family Court referee agreed with Miller that the messy custody battle should be fought in California, McKenna revealed how their brief romance became “the worst mistake of my life.”

They began dating in April 2012. By May, she said, he told her she had to agree “to have at least four of my babies.” This was in a text message ended with a smiley face, with hearts in the eyes.

“It was a typical mushy, mushy relationship,” she said.

But Miller’s interest in having kids changed after he developed an interest in volleyball player Morgan Beck, she said.

“He saw her photograph at his agent’s office in New York and asked for her number,” McKenna said. “While we were in Florida” — where their son had been conceived — “he had it planned out to watch the game, and the next thing he said was, ‘It was love at first sight.’ ”

McKenna went into false labor five months premature, and her doctor said it was induced by stress. It was the day after his wife said they wanted to take the baby away, that Bode wanted full custody, the doc said.

Their child, Samuel Bode Miller McKenna, was born on Feb. 23 after McKenna had moved to New York

Representatives for Miller did not respond to e-mails and phone calls for comment.

In court papers seeking custody, Miller said that McKenna, “in her third trimester, and while on orders from her doctors to stay off her feet, fled to New York City for the sole purpose of forum shopping.”

He said he was better able to care for the child. “My wife and I have a five-bedroom home on 11 acres in a great and safe gated community,” he said.

He also seeks to have the baby’s name changed to Kinsman Skan Miller, in memory of his recently deceased brother, Nathaniel Kinsman Ever Chelone Skan Miller.